Prasophyllum odoratum R.S.Rogers

Fragrant Leek-orchid

Trans. & proc. Roy. Soc. South Australia 33: 209 (1909) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Flowering stem slender to stout, 10–80 cm tall. Leaf-blade to 50 cm long, base 2–8 mm diam., purplish. Flowers 10–50, white with greenish or reddish markings, often fragrant, in a dense to open spike 6–20 cm long; ovary obovoid, 4–6 mm long, swollen; sepals 6–10 mm long, dorsal sepal deflexed or incurved, ovate-lanceolate, lateral sepals free, ovate-lanceolate, usually divergent, recurved; petals 6–9 mm long, linear-oblong to spathulate, margins often white. Labellum 6–10 mm long, ovate to ovate-lanceolate, white, crystalline, usually bent at about 90 deg. near the middle, proximal half erect to recurved, often protruding between lateral sepals, margins strongly folded or crisped-crenulate; callus yellowish, thin-textured, channelled, ending just past the labellum bend, basal swelling prominent, pyramidal. Column appendages falcate, to 3 mm long, truncate. Flowers Oct.–Jan.

Brid, CVU, DunT, EGL, EGU, GipP, Glep, Gold, GGr, HNF, HSF, LoM, MonT, MuF, MuM, OtP, OtR, RobP, SnM, Strz, VAlp, VRiv, VVP, WaP, Wim. Also SA, NSW, ACT. New Zealand. Widespread throughout much of Victoria and present in a wide range of habitats from sea-level to the subalps.

Rouse (2002, 2005) recognised as many as 15 entities in the 'P. odoratum/patens group' but to date only two have been named (Jones 2017). Prasophyllum rousei D.L.Jones is distinctive but it remains unclear just how P. sylvicola is to be differentiated from the remainder of the complex and it is here treated as a synonym of P. odoratum. The type specimen of P. odoratum is from South Australia, and it is possible that the species in the strict sense does not occur in Victoria. The relationship between P. odoratum, P. patens, P. robustum, P. truncatum and P. album (none of which have type specimens from Victoria) is also in need of study.

Created by: Jeff Jeanes, 2015-04-10
Updated by: Neville Walsh, 2019-04-24

Jones, D.L. (2017). Three new species of Orchidaceae from Victoria, Austral. Orchid Review 82(2): 51-58.

Rouse, D.T. (2002). Report on the taxonomic, ecological and conservation status of taxa in the genus Prasophyllum R.Br. in south-eastern Australia., CD rom, published by the author.

Rouse, D.T. (2005). Report on the taxonomic, ecological and conservation status of taxa in the genus Prasophyllum R.Br. in south-eastern Australia, supplement., CD rom, published by the author.

Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Asparagales
family Orchidaceae
genus Prasophyllum
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Prasophyllum odoratum in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Prasophyllum odoratum in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Wimmera present native
Glenelg Plain present native
Bridgewater present native
Victorian Volcanic Plain present native
Victorian Riverina present native
Robinvale Plains present native
Murray Fans present native
Gippsland Plain present native
Otway Plain present native
Warrnambool Plain present native
Goldfields present native
Central Victorian Uplands present native
Greater Grampians present native
Dundas Tablelands present native
East Gippsland Lowlands present native
East Gippsland Uplands present native
Highlands-Southern Fall present native
Highlands-Northern Fall present native
Otway Ranges present native
Strzelecki Ranges present native
Monaro Tablelands present native
Victorian Alps present native
Snowy Mountains present native

State distribution

Distribution map
Western Australia
South Australia
New South Wales
Australian Capital Territory